Honda Accord 2008 Manual page 2189

07/11/02 09:32:00 61TA0000_220_0159
Keyless/Power Door Locks/Security System
DTC Troubleshooting (cont'd)
DTC B1129: Driver's Door Lock Knob Switch
Signal Error (LOCK/UNLOCK)
NOTE: If you are troubleshooting multiple DTCs, be
sure to follow the instructions in B-CAN System
Diagnosis Test Mode A (see page 22-120).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back
to ON (II).
3. Operate the driver's door lock knob switch several
times.
4. Check for DTCs with the HDS.
Is DT C B1129 indicated?
YES − Go to step 5.
−
NO Intermittent failure, the driver's door lock
knob switch system is OK at this time. Check for
loose or poor connections.
5. Select KEYLESS from the BODY ELECTRICAL menu,
and enter the DATA LIST.
6. Check the ON/OFF information of the DRIVER'S
DOOR LOCK KNOB SWITCH (LOCK) and the
DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK).
Is the DRIV ER'S DOOR LOCK K NOB SW IT CH
( LOCK ) inf ormation indicator ON and the
DRIV ER'S DOOR LOCK K NOB SW IT CH
( UNLOCK ) inf ormation indicator OF F with the
driver's door lock knob switch in LOCK position,
and is the DRIV ER'S DOOR LOCK K NOB
SW IT CH ( LOCK ) inf ormation indicator OF F and
the DRIV ER'S DOOR LOCK K NOB SW IT CH
( UNLOCK ) inf ormation indicator ON with the
driver's door lock knob switch in UNLOCK
position?
−
YES Replace the power window master switch
(see page 22-283).
NO − Go to step 7.
22-156
7. Disconnect the driver's door lock actuator 10P
connector.
8. Check the ON/OFF information of the DRIVER'S
DOOR LOCK KNOB SWITCH (LOCK) and DRIVER'S
DOOR LOCK KNOB SWITCH (UNLOCK) in the
DATA LIST.
Are both inf ormation indicators OF F ?
YES − Go to step 12.
NO − Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Disconnect the door multiplex control unit 37P
connector.
11. Check for continuity between body ground and the
door multiplex control unit 37P connector No. 30
and No. 31 terminals.
DOOR MULTIPLEX CONTROL UNIT 37P CONNECTOR
UNLOCK (WHT)
LOCK (YEL)
Wire side of female terminals
Is there continuity?
−
YES Repair a short to ground in the LOCK or
UNLOCK wire.
NO − Replace the power window master switch
(see page 22-283).
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